<span>4у – 29 = 31
</span><span>4у=31+29
4</span><span>у=50</span>
<span>у=50/4
</span><span>у=12.5
</span>
<span>48 : (65 – z) = 12
</span><span>65 – z=48:12
</span><span>65 – z=4
</span><span>– z=4-65
</span><span>z=61</span>
S=(a+b)/2 √(c^2-〖(a-b)〗^2/4)
S=(5+17)/2 √(10^2-〖(5-17)〗^2/4)=
=22/2√(100-144/4)=
=11√64=11*8=88
V=4/3πR³
V1/V2=R1³/R2³=(R1/R2)³=(3/4)³=27/64
M/(1,8+2,05) = 9
m = 34,65
n/5 = 63 - 56,08
n = 34,6
k/(8-6,09) = 6
k = 11,46
z/(19,63+0,37) = 8,376
z = 167,52
x/(78,09+21,91) = 0,736
x = 73,6
y/(98,35-83,17) = 7
y = 106,26